After completing my first sandbox game and onto my second one I have noticed fairly big bugs on the diplomacy and trading screens.

When I have a Non Agg Pact with someone the "declare war" button is greyed out. However whenever I don't have any offspring and I ask the other sovereign to make an arranged marriage then the button is no longer greyed.

I've also noticed that Trade and Technology treaties sometimes aren't actually getting put into the trade screen sometimes, like I will select trade treaty for their trade treaty and nothing will show up inside the box.

And lastly, some time an AI sovereign will send a trade request stating that "You won't believe what sort of technology I've discovered" or something to that nature and if you accept, it'll go to the trade screen without anything inside the trade boxes. To my knowledge there is no Tech trading implemented in this game so I don't know why other ai sovereign are trying to trade techs.

Please address these issues in the future patches.